Export Control Gap: Nvidia B300s Found in China Telecom Network

Thirty-two of the world’s most powerful AI processors have been identified inside a major Chinese state-owned telecommunications network, highlighting a persistent loophole in global export controls.

Israeli security firm Lava confirmed the presence of Nvidia Blackwell Ultra B300 chips within China Telecom’s infrastructure. The discovery is notable because U.S. regulations have barred these specific high-performance GPUs from export to China. Such hardware is typically restricted to whitelisted buyers who agree not to transfer the technology to sanctioned parties. Lava detected the chips using Nvidia’s DCGM Exporter tool, a software utility designed for data center operators to monitor server health. While intended for internal use, this tool can often be accessed from outside the data center’s secure perimeter and does not always require password authentication. Neither Lava nor Nvidia has yet confirmed the exact location of the servers within China Telecom’s vast network, only that the chips are present and active.

The issue of controlled chips reaching Chinese data centers is not new. In 2025, reports indicated that Chinese firms smuggled approximately $1 billion worth of Nvidia AI hardware into the country over a three-month period. At that time, the B200 model was the primary target, but distributors were already positioning themselves to move the newer B300 series once it became available. The B300, announced in March 2025, offers significant performance advantages over its predecessor, including 50% more memory and enhanced FP4 compute capabilities. Nvidia marketed the chip as being built for the era of reasoning, specifically citing compatibility with sophisticated large language models. Although initially expected to ship by the end of 2025, the chip quickly became a high-value asset in the global AI market.

The smuggling pipeline remains active and complex. In August 2026, nine individuals in Taiwan were indicted for illegally exporting B300 GPUs to China. This legal action followed an internal investigation at Supermicro, which resulted in the termination of several employees. The illicit trade network reportedly utilized a Taiwanese server trading firm known as Flying Tiget Tech, which held the necessary whitelisted status to purchase the GPUs legitimately before diverting them.

Despite the findings, Nvidia maintains that the scale of the leak remains manageable. A company spokesperson stated that recent court cases have shown the diversion of controlled U.S. products to be less than half of one percent of the total volume. Nvidia described this amount as a "drop in the bucket" compared to the massive domestic compute capacity China already possesses. The company emphasized that with tens of millions of GPUs in service in approved countries, smuggling remains a non-factor, citing effective blocking mechanisms by governments on both sides of the globe.

The high demand for Nvidia silicon continues to drive up prices for older generations of hardware. A100 servers, which are five years old, have seen their prices triple and can now cost up to $82,000. This scarcity has led some operators to retool gaming GPUs for AI workloads as a stopgap measure. Nvidia is currently working on a dedicated tool to help locate its chips in the field, though it has not yet been released. For now, the discovery within China Telecom serves as a reminder that the flow of advanced computing power into China remains a critical point of friction in the tech sector.